Warp sizing machine



July 1934- c. B. JOHNSON 1,966,097

WARP S I Z ING MACHINE Filed July 22, 1933 E Sheets-Sheet 1 YINVENTOR/Clm. rte: BJZZ 1'50 )1,

SY R ATTORNEY CAB. JOHNSON WARP SIZING MACHINE 3 Sheets-Sheet 2 Filed y2, 1953 INVENTOR 611a, r10: B. Jbbnsoz,

11.02 I ATTORNEY July 10, 1934., Q B, JQHNSQN 1,966,097

WARP SIZING MACHINE Filed July 22, 1935 3 Sheets-Sheet; 3

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ATTORNEY Patented July 16?, 1934 UlTED STATES,

PATENT OFFICE WARP SIZING MACHINE Charles B. Johnson, Paterson, N. J.

Application July 22, 1933, Serial No. 681,735

1 Claim. (01. 28-28) l9 lar warp being treated and which is essential tothe particular product (the sized warp) which it is to form; in otherwords, if there is an inadvertent sudden and appreciable relaxationpermitted trouble will be encountered and the quality of the productwill be impaired. The operation is usually not stopped so as to bringthe warp to a standstill once a particular warp has been started throughthe machine, since that involves leaving the warp standing in the sizingliquid of 2c the sizing medium or quetch and thedanger of harm beingdone to the warp while in stationary contact with the heated cans. Whatis done instead, when inspection or repair is necessary, is to slow downthe machine to a relatively low speed for the time being. Heretoforethere has been no provision for accomplishing this slowing down from andsubequent speeding up to the normal speed in a simple and quicklyperformable manner without incidentally producing appreciable torelaxation of the tension of the warp, particularly when slowing down.Hence the object of this invention is to provide a machine of this classwith means whereby a change in speed can be effected simply and quicklywithout relaxation of the tension.

In the drawings,

Figs. 1, 2 and 3 are, respectively, a plan, a side elevation and a frontelevation of a warp-sizing machine embodying the invention;

Fig. 4 is a transverse sectional view of the take-up;

Fig. 5 is a section on line 5-5, Fig. 4;

Figs. 6 and? are, respectively, a plan and a front elevation of thechange-speed mechanism, 5 certain parts appearing'in section;

Fig. 8 is a sectional view on line 8-8, Fig. 7, of the overrunningclutch, and Fig. 9 a transverse sectional view of such clutch; and

Fig. 10 is a view partly in elevation and partly in section of the otherclutch.

On the frame 1 is arranged a quetch A, from which the warp receivessizing liquid, forward of the quetch are the rotary heated intergearedcans B, and forward of the cans is the take-up C; there may also be aseries of guide-bars D around some or all of which the warp may extendin any arrangement. The take-up includes a beam on which the warp iswound and which is driven through slip-friction from a rotary impellertending to rotate the beam at faster peripheral speed than that of thecans so that the warp will be tensioned between the take-up and cans;the take-up may include a set of nip-rollers which keep the warp fiatand otherwise in proper order .just prior to being wound on the beam.All this is, in a general may, known in the art. The quetch and cans aremore particularly disclosed, for example, in my Patent No. 1,540,265. Amore particular desciption of the take-up shown is as follows:

The beam 2 on which the warp is wound is supported between live and deadspindles 3 and 3a journaled, respectively, in a stand 4 and the frame 1.Splined to and therefore in eflect one with the live spindle is apulley-like element 5 having its flanges 5a faced with some frictionmaterial or otherwise adapted to' afiord friction surfaces. Freelyrevoluble on said element, as through the medium of anti-frictionbearings 6, is a gear '7 having flanges 7a to coact with flanges 5a, andfreely revoluble on the spindle both sides of element 5 are the disks orface-plates 8, the gear and disks being preferably interlocked as at 9to rotate as one and constituting the mentioned impeller. This impellerbeing in rota- 5 tion, the friction whereby element 5 and hence thespindle are driven is established by pressing one disk toward the otherwith consequent compression of each flange 5a between the gear and adisk-flange 7a. The left-hand disk abuts the stand 4, whereas theright-hand disk-is subject to the pressure of a collar 10 slidable onthe spindle, such collar being itself subject to the pressure of a.lever 11 which is in turn subject to the pressure of a lever 12 havinglongitudinally adjustable weights 13, said levers being fulcrumed in thestand (Fig. 3). The weights having been adjusted on lever 12 to obtain acertain degree of slip-friction between the impeller and the drivenmember formed by 3-5 and the impeller being assumed to be driven atadequate speed the takeup will coact with the cans to tension the warp,such tension being regulable as the operation proceeds by adjustment ofthe weights.- As for the nip-rollers, 14 is the lower one journaled inbrackets 15 and 16 the upper ones resting on niproller 14 and havingtheir gudgeons guided in slots in said brackets. The warp on its wayfrom the bars D to'the beam extends over one roller 16, under roller 14,and then over the other rollno er 16. Nip-roller 14 carries a gear 17meshing with gear 7 of the impeller. I provide cross-rails 18 on frame 1which carry brackets 19 in which is journaled a shaft 20 having a pinion21 meshing with gear 17, said shaft thus in effect forming one elementof the rotary system constituting the take-up and with respect to acertain rotary shaft 29 to be referred to being what I term the drivenelement of said take-up.

Usually the cans are driven, as by a shaft 22 having a bevel-pinionconnection 23 with shaft 20 and gearing 24 connecting the shaft with thenear can. Due to the gear-ratio at 7-17 the tendency is for the take-upto rotate the beam (through the mentioned slip-friction) at a fasterrate than the cans, wherefore the beam coacts with the cans as indicatedto tension the warp between the latter and the take-up, usually causingactual distention thereof and so-setting up such elastic force as islatent therein.

The power to drive shaft 20 is derived from an electric motor 25 andthis, through gearing 26, a variable-speed transmission 2'7 (here of thewellknown Reeves type) and gearing 28, drives a shaft 29 which in turndrives shaft 20 through either of two clutches 30 and 31, the formerbeing an overrunning andthe latter (here) a friction clutch. theconstructions of which are as follows:

Clutch 30.-Clutch member 30a is free on the shaft and clutch member 3012fast thereon. In a manner characteristic of this type of clutch, member30a has peripheral notches 300 formed with inclined faces which convergetoward the inner periphery of the flange portion of member 30bsurrounding member 30a; in these notches and urged into such convergenceby springplungers 30d are rollers 302. When member 30a is rotated as perthe arrow in Fig. 8 it will act through the rollers immediately to drivemember 30b and hence the shaft, but member 3017 and the shaft may berotated faster than and hence independently of member 30a, as by clutch31. Member 30a has affixed thereto a gear 32 in mesh with a pinion 33fast on the shaft 29.

Clutch 31.Clutch member 31a is free on the shaft, whereas clutch member3117 is keyed thereto. When a sleeve 310 is shifted to the right in Fig.6 its wedge 31d spreads the dogs 31c which thereby expand the split-ring31f into gripping engagement with the encompassing portion of member 31aso that the shaft, will then be adapted to be driven from the lattermember. Member 31a has aflixed thereto a pinion 34 in mesh with a gear35 fixed on shaft 29.

The gear-ratios of the gearing connecting the two clutches with shaft 29are' such that shaft 20 will be driven at low speed when clutch 30 isactive and at high speed when clutch 31 is active.

For shifting sleeve 310 of clutch 31a there is a lever-36 fulcrumed onone rail 18 and pivotally connected to a bar 37 slidable in brackets 38on the frame 1. This bar and hence the lever and an operating handle 39pivotally connected to the bar and fulcrumed in the frame may occupy anyof three positions determined by the engagement of a spring-pawl 40 inthe frame with one of the notches 41, three in number, in the bar- Thebar carries a projection 42 to press in a pushbutton 43 when the bar isin the position 0 (Fig. '7), thus to cut out the magnetic switch 44 forthe motor 25 and so stop the machine, as upon completing a pass of thewarp; when the bar is in the position I or II (respectively for drivingshaft 20 at slow speed through clutch 30 or at high speed through clutch31) the button is freed and closes the motor circuit.

The motor being here an electric motor, its power source is indicated at45'and the circuit including the motor and switch 44 is shown at 48 8partly in full and partly in broken outline.

In the operation of these machines, once a pass of warp is started thereshould, as explained, be no stopping until the pass is completed. Whatis done, instead, is to run the machine for the 5 time being veryslowly. This can not be done by resort to the variable-speedtransmission 27 because the adjustment as to speed effected there is notintended to producequick speed changes and once obtained should bepreserved as much i as possible, since it has much to do with thequality of the product (the sized warp) and depends largely on the skilland experience of the operator to determine it with that in view. Foreffecting a change from high to slow speed, and vice versa, i the bar isshifted from position 11 to position I, or vice versa. When it is inposition 11 (high speed) the drive is via gearing 35-34 and clutch 31;when the bar is in position I the drive is via gearing 33-32 and clutch30. Only one clutch (31) is manipulated. The other (30) automaticallypicks up shaft 20 or allows it to run ahead of it according as clutch 31is placed out of or in commission. Besides the advantage thus present inthe simplicity of construction and facility 1( of operation in changingthe speed is an advantage which will be apparent when it is consideredthat if member 20 is cut off from the power and free to turn backwardthere will be nothing to oppose any effort of the warp to slacken, asdue to its weight between the take-up and cans or to the force ofelasticity stored up in it between them, or both; in fact the potentialextent of such slackening is equal to the sum of the back-lashincrements existing in the gearing from the takeup to the cans. I

By my invention the cutting off of the power from the take-up and theconsequent relaxation of the tension on changing from one speed to theother are avoided. This is quite as true when the speed change is fromhigh to low as when it is from low to high, and also when the machine isstopped by shifting lever 36 to position 0, for as soon as thehigh-speed clutch 31 ceases to exert torque on shaft 20 the low-speedclutch 30, without even momentary interruption, exerts its own torque onthe shaft; in short, the shaft is at no time free to turn backward, thusto allow the slackening.

Consequently the invention makes it possible 13 for the machine to berun so as to pass the warp under any desired degree of tension, withquick changes from high to low speed and back, but continuously withtension presentand in fact not varied in degree as an incident of thechange.

I claim:

A warp sizing machine comprising, with a rotary means on which to windthe warp, rotary means having a slip-friction connection with andadapted to transmit rotation to the first means, 14 and rotary heatedmeans anterior to' the first means resisting advance, of the warp, arotary driven element geared with the second and third means, aconstantly rotating driving element, low-speed means to transmit rotarymotion from '14 the driving to the driven element including anoverrunning clutch, and a diseonnectiv'e highspeed connection totransmit rotary motion from the driving to the driven element.

CHARLES B. JOHNSON.

